| A.L.L. Surfacing Contractors Ltd | Salisbury | 2010 |
| A.L.L.C Ltd | London | 2025 |
| A.L.M Group Solution Limited | Dagenham | 2024 |
| A.L.M. Health and Safety Consultants Ltd | Grays | 2025 |
| A.L.Mccay Ltd | Derry | 2024 |
| A.L.N Bespoke Homes Limited | Newmarket | 2025 |
| A.L.N Contract Lifting Limited | Newmarket | 2025 |
| A.L.N Homes Limited | Newmarket | 2025 |
| A.L.N Joinery Ltd | Linwood | 2018 |
| A.L.N Specialists Limited | Hove | 2015 |
| A.L.N. Carpentry & Joinery Ltd | London | 2012 |
| A.L.P. & Co. Ltd | Wallington | 2012 |
| A.L.Rinstallationservices Ltd | Leigh-On-Sea | 2024 |
| A.L.S.O. Installations Ltd | Harrogate | 2024 |
| A.L.T. Fire Stopping Limited | Romford | 2023 |
| A.L.T. Heating Ltd | London | 2020 |
| A.Leary Tiling Ltd | Chesterfield | 2018 |
| A.Lloyd and Sons Limited | London | 1916 |
| A.Lovell Civils Ltd | Fleetwood | 2026 |
| A.M Blatch Electrical Contractors Ltd | Kings Lynn | 2001 |
| A.M Blatch Trustees Limited | Wisbech | 2021 |
| A.M Building Works Ltd | Swindon | 2023 |
| A.M Carpentry (London) Ltd | Luton | 2024 |
| A.M Decorating Ltd | Walkden | 2015 |
| A.M Decorators Ltd | Uxbridge | 2022 |
| A.M Designs Electrical Contractors Ltd | Tamworth | 2012 |
| A.M Electrical Harrogate Ltd | Knaresborough | 2012 |
| A.M Electrical Solutions LDN Limited | London | 2025 |
| A.M Electrics Devon Ltd | Newton Abbot | 2022 |
| A.M Group Construction Limited | Brighton | 2024 |
| A.M Heavy Lifting Ltd | Liverpool | 2020 |
| A.M Home Solutions Ltd | Blandford Forum | 2016 |
| A.M Managment Ltd | Birmingham | 2024 |
| A.M Pipe Solutions Limited | London | 2020 |
| A.M Plumbing & Heating (Scotland) Ltd | Falkirk | 2025 |
| A.M Property Maintenance & Services Limited Limited | Newton Abbot | 2026 |
| A.M Property Services (London) Ltd | London | 2021 |
| A.M Property Services Midlands Limited | Redditch | 1963 |
| A.M Sparks Ltd | London | 2016 |
| A.M Steel Projects Ltd | Darvel | 2026 |
| A.M Traffic Management Ltd | Doncaster | 2025 |
| A.M. (Cumbria) Limited | Carlisle | 2008 |
| A.M. Branson Plumbing and Heating Limited | Bulkington | 1999 |
| A.M. Buildright Limited | London | 2007 |
| A.M. Clements Limited | Dorset | 2003 |
| A.M. Construction (Southern) Limited | Hove | 2003 |
| A.M. Dagg (Plant Hire) Ltd. | East Lothian | 2003 |
| A.M. Decor Limited | Kirkcaldy | 2017 |
| A.M. Dixon Building Services Limited | Kendal | 2008 |
| A.M. Doors Limited | Paignton | 1996 |
| A.M. Electrical Stratford Upon Avon Ltd | Bidford-On-Avon | 2016 |
| A.M. Engineers Limited | Thornton Heath | 2002 |
| A.M. Finishers Limited | Dagenham | 2026 |
| A.M. Fire Systems Ltd | Rochdale | 2002 |
| A.M. Gardiner Limited | Inverness Shire | 2001 |
| A.M. Glazing (Contractors) Limited | London | 1982 |
| A.M. Goddard Limited | Maidstone | 2012 |
| A.M. Hedges, Builders, Limited | Kesgrave | 1995 |
| A.M. Herman Ltd | Peterborough | 2024 |
| A.M. Home Improvements Midlands Ltd | Wednesbury | 2022 |
| A.M. Norris Limited | Coalville | 1975 |
| A.M. Plumbing & GAS Services Limited | Northwich | 2010 |
| A.M. Property Services (Derby) Limited | Derby | 2006 |
| A.M. Pugh Limited | London | 1997 |
| A.M. Reid (Plumbing and Heating) Limited | Broxburn | 1984 |
| A.M. Smith (Sparvil Homes) Limited | Yeovil | 1972 |
| A.M. Smith Groundworks Limited | Cranbrook | 2002 |
| A.M. Transp Ltd | London | 2025 |
| A.M. Tree Services (East Midlands) Ltd | Nottingham | 2016 |
| A.M. Warkup Limited | Driffield | 2002 |
| A.M. Watt Design & Build Limited | Tyne & Wear | 1987 |
| A.M. Wired Ltd | Gravesend | 2022 |
| A.M.A Brickwork Limited | Bracknell | 2017 |
| A.M.A Carpentry and Joinery Ltd | London | 2016 |
| A.M.A. Developments Limited | Cambridge | 1984 |
| A.M.B. Developments Limited | Poole | 1999 |
| A.M.B. Engineering Limited | Epsom | 1974 |
| A.M.C Rigging Ltd | Bedworth | 2018 |
| A.M.C. Contracts (UK) Limited | Sheffield | 2001 |
| A.M.C. Plumbing & Heating (Bedford) Ltd | Bedford | 2016 |
| A.M.E Builders Ltd | Plymouth | 2020 |
| A.M.E GAS Services Limited | Prenton | 2024 |
| A.M.E. Lift Engineering Ltd. | Eastbourne | 1997 |
| A.M.E. Services Ltd | Rochdale | 1997 |
| A.M.G Northwest Plumbing & Heating Ltd | Thornton, Cleveleys | 2026 |
| A.M.G. Electrical Systems Limited | Paisley | 2014 |
| A.M.H Construction Development. Ltd | London | 2024 |
| A.M.H Rigging Limited | Blackpool | 2010 |
| A.M.H. Properties Limited | Radlett | 1970 |
| A.M.H. Scaffolding Services Limited | West Horndon | 2022 |
| A.M.I. Joinery & Building Limited | Lancashire | 2005 |
| A.M.K Wind Ltd | Londonderry | 2025 |
| A.M.K. Maintenance Leeds Limited | Leeds | 1985 |
| A.M.L. Joinery Limited | Hartlepool | 2025 |
| A.M.L. Scaffolding Limited | Wentloog Ave | 1998 |
| A.M.O Scaffolding Ltd | Marlow | 2020 |
| A.M.O.S. Properties Limited | Ingatestone | 1987 |
| A.M.P Building & Plastering Services Ltd | Great Yarmouth | 2025 |
| A.M.P. Electrical Contractors & Engineers (S.E.) Limited | Redhill | 2004 |
| A.M.P. Electrical Contractors and Engineers Limited | Redhill | 2002 |